Self-signed certificate support for GitHub Enterprise
To help you get started with GitHub Enterprise installs that use self-signed certificates, we've added the ability to disable TLS certificate verification in your GitHub Enterprise Buildkite settings 🔓

You can find the new setting in your GitHub Enterprise settings, and read more details in our GitHub Enterprise documentation.
Samuel
Removal of the “All Organizations” scope for API Access Tokens
To improve API Access Token security we have removed the “All Organizations” scope from tokens. When managing your tokens you now explicitly select each organization 🔐

If you had tokens with “All Organizations” scopes, they have been automatically migrated and include all of your current organization memberships. When you join a new Buildkite organization, and wish to grant a token access to its data, you must edit the token's settings and select the new organization.
You can manage your tokens on the API Access Tokens Settings page.
Lachlan
Jessica
Updated Environment Variables documentation
The Environment Variables documentation has had a major update 🤩
🌈A new layout ⚡️A new section for deprecated variables 🍩Many previously undocumented variables added 💥Expanded descriptions

You can find the updated Environment Variables page under the Pipelines section of the documentation 🚀
Harriet
New Agent Tokens documentation
We’ve added a new Agent Tokens page to the documentation. It explains default organization tokens, creating and revoking tokens using GraphQL, session token exchange, and more 🕵🏻♀️

You can find the new Agent Tokens page under the Agent section of the documentation 🎊
Harriet
Upgrades to Single Sign-On support
We've been rolling out some big upgrades to Buildkite’s Single Sign-On (SSO) support based on your feedback 📣

The upgrades to Single Sign-On include:
- Admins can now invite users into an SSO organization prior to them joining, along with team membership.
- Team membership can now be passed through as a SAML user attribute.
- Contractors and bots can be added to an organization using any email domain.
- SSO can be made optional for some users, allowing you to have a "break glass" account in the case of your SSO provider being unavailable.
- People can participate in multiple Buildkite organizations with SSO enabled, and easily switch between them.
If your organization hasn't already made the switch, we'll be automatically moving your Buildkite organization to the new version of SSO over the next few weeks. There will be no interruption to your logins, and it won't require any changes to your SSO provider setup.
If you have any questions please email support@buildkite.com, and you can read more about SSO updates in our community forum post 😊
Lachlan
Build messages are now optional
To make testing new pipelines easier, you no longer need to specify the "Message" of a build. Buildkite now automatically resolves the message, based on the git commit, when the build starts 🎉

We've also updated the Builds REST API and GraphQL API so your integrations can take advantage of this too.
Keith
SSO setup guides now available
We've added a new SSO section to the documentation, with instructions for setting up Single-Sign On with Google OAuth, Okta, OneLogin, and ADFS, and custom SAML providers ✨
You can now also find step-by-step instructions for managing SSO with GraphQL, allowing you to enable, disable and update your SSO settings via the Buildkite GraphQL API 
Harriet
Agent Improvements in v3.6 - v3.8
Happy 2019! To kick off the year, we've got some new agent changes fresh off the press!
Better error messages for cancelled jobs 🚨
When a job is cancelled, the agent receives the instruction and starts to shutdown the running job. The job is given 10 seconds to finish, after which it's terminated. Previously what had happened wasn't clear. We now clearly show that a command was interrupted by a signal:

Configurable grace period for cancellation ⏱
By default we give cancelled jobs 10 seconds to finish before they terminate. For some things like a Terraform tear-down, this can take a lot longer. We added a config of cancel-grace-period to customize that value.
# Wait 600 seconds (10 minutes) for cancellation
buildkite-agent start --cancel-grace-period 600Future improvements will allow this to be set at a pipeline or step level.
Checkout directory is removed on error 🧹
Checkouts can fail for a variety of reasons which can sometimes leave the git repository in a corrupted state that prevents future checkouts.
The default behaviour for the agent is now to remove the checkout directory if there is a terminal checkout failure.
Windows agents run hooks after cancel 🎣
Windows unfortunately doesn't handle signals like posix systems do, so on Windows the cancellation behaviour was to simple terminate the job. This meant that artifacts weren't uploaded and hooks like pre-exit didn't run, which left things like docker-compose without a way to cleanup.
We now use Windows Terminal Process Groups and the CTRL_BREAK message to emulate signal handling in windows, which now means it should behave much like it's fairer cousins!
Windows gets terminal colors! 🖍
Ok this is a small improvement, but it represents our ongoing efforts to take advantage of the neat things that the Windows Terminal team is doing building for Terminal apps.
Spawn Multiple Agents 🐙
Currently we recommend that multiple agents on a host are run via your init system (launchd, systemd, etc). The new --spawn feature allows for multiple parallel agents to be spawned from the one installation.
We're still figuring out how this might fit into the bigger picture, but keen to see how folks use this feature!

Datadog metrics (Beta) 🐶
We are working with the Datadog team on becoming an official integration. First steps are getting some simple job metrics into Datadog.
You can use the new config metrics-datadog and metrics-datadog-host.
Let us know what you think at https://forum.buildkite.community/t/about-our-datadog-integration/216
Vendored Plugins 📦
We now support loading plugins from within your repository. This lets you vendor plugins to ensure that a third-party can't change them.
steps:
- label: 'Test with vendored docker plugin'
plugins:
- './.buildkite/plugins/docker':
image: 'hello-world'Check out https://github.com/buildkite/agent/pull/878 for a bit more context.
Resolve $BUILDKITE_COMMIT correctly at pipeline upload ⚙️
We now resolve manually triggered builds with a commit of HEAD to the actual commit value in $BUILDKITE_COMMIT for your pipeline uploads.
See https://github.com/buildkite/agent/issues/456 for more context. I'm sorry it took us so long!
Better handling of submodules 🧤
We discovered a few gnarly bugs where we weren't ssh keyscanning submodules correctly and also a few cases where we weren't cleaning up lingering submodules in the checkout phase. These are now squashed!
Lachlan
New 🚀 Sticker in the Buildkite Shop
Everyone's favourite illustration from the Buildkite website has been repackaged and deployed as a set of transparent stickers, ready for you to launch onto any surface you choose ✨

You can order your own set of 🚀 stickers from the Buildkite Shop.
Ben
Link to jobs from annotations
You can now link directly to a job from a build annotation! 🔗

This should make the annotations generated by neat annotation generators like test-summary-buildkite-plugin and rspec-buildkite all the more handy.
Jessica
Elastic Stack for AWS v4.0.0
We've released a new major version of Elastic Stack for AWS.
The Buildkite Elastic CI Stack gives you a private, autoscaling Buildkite Agent cluster. Use it to parallelize legacy tests across hundreds of nodes, run tests and deployments for all your Linux-based services and apps, or run AWS ops tasks.
The new version is focused on moving the underlying instances to Amazon Linux 2, which brings with it modern versions of systemd amongst others.
Check out the full release notes at https://github.com/buildkite/elastic-ci-stack-for-aws/releases/tag/v4.0.0 and let us know what you think at https://forum.buildkite.community/t/upcoming-elastic-stack-v4/78.
Lachlan
New Screencast: Docker
There's a new screencast available at buildkite.com/screencasts/docker 🎉
The Docker screencast walks through a Docker workflow in Buildkite: building, testing, and deploying an image to production. The pipeline and code you'll see in the screencast are also available on GitHub: https://github.com/buildkite/screencast-examples/
You can check out the Docker screencast, and all the others, at buildkite.com/screencasts
Harriet
Canceled builds now show who canceled
We've just shipped a small update to the build page to include the user who canceled the build 🙅♀️🙅♂️

And if your build was canceled due to Build Skipping (e.g. if you’ve enabled "Cancel Intermediate Builds") we'll show that too:

Keith
Docker Plugin v2
Buildkite Docker Plugin v2.0.0 has been released, and includes:
- Support for multi-line commands
- A new
commandoption for using single-binary/command line Docker images - Windows container support
steps:
- command: 'dotnet publish -c Release -o published'
plugins:
- docker#v2.0.0:
image: 'microsoft/dotnet:latest'
always-pull: trueSee all the details, and upgrade instructions, on the release notes: https://github.com/buildkite-plugins/docker-buildkite-plugin/releases/tag/v2.0.0
Lachlan
Buildkite Agent 2.2
We’ve just released Buildkite Agent v2.2 (Brangelina) 💑💔
So what's changed since Buildkite Agent 2.1.14?
Features
The buildkite-agentbinary is now built with Golang 1.7 giving us support for macOS Sierra- 💨 The agent now talks HTTP2 making calls to the Agent API that little bit faster
- 📦 The binary is a statically compiled (no longer requiring
libc)
meta-data-ec2andmeta-data-ec2-tagscan now be configured usingBUILDKITE_AGENT_META_DATA_EC2andBUILDKITE_AGENT_META_DATA_EC2_TAGSenvironment variables
(Possible)? Breaking changes
We've removed our dependency of libc for greater compatibly across *nix systems which has had a few side effects:
- We've had to remove support for changing the process title when an agent starts running a job since it required
libcto work. This feature has only ever been available to users running 64-bit Ubuntu. We'd like to bring this feature back in the future in a way that doesn't have us relying onlibc - The agent will now use Golangs internal DNS resolver instead of the one on your system. This probably won't effect you in any real way, unless you've setup some funky DNS settings for
agent.buildkite.com
The release has been published to the Buildkite package repositories. For instructions on upgrading your agent please see the Upgrading section in the corresponding section of our installation documentation.
Keith
Improved organization invitation system
Today we’ve shipped some changes to simplify the Buildkite invitation system, including revamped invitation emails, automatic email address verification and a new screen for you to double check invitations before accepting them.
You can get the lowdown on our Building Buildkite blog post 🌟
Keith
Buildkite Agent 2.1.14
Update: We accidentally introduced a bug in this release. Please upgrade to the latest agent instead.
It's a cold winter's day here in Melbourne, but never too cold for new Buildkite Agent release: v2.1.14 (Frosty) ⛄️
What’s new since v2.1.13?
- 🔍 SSH key scanning should be more resilient, whether or not you hash your known hosts file
- 🏅 Commands executed by the Bootstrap script correctly preserve positional arguments and handle interpolation better
- 🌈 ANSI color sequences are a little more resilient
- ✨ Git clean and clone flags can now be supplied in the Agent configuration file or on the command line
- 📢 Docker Compose will now be a little more verbose when the Agent is in Debug mode
- 📑
$BUILDKITE_DOCKER_COMPOSE_FILEnow accepts multiple files separated by a colon (:), like$PATH
The release has been published to the Buildkite package repositories. For instructions on upgrading your agent please see the Upgrading section in the corresponding section of our installation documentation.
For a full list of what's changed see the GitHub release page 
Samuel
Buildkite Agent Homebrew Updates
If you’ve installed the Buildkite Agent using Homebrew recently you might have noticed warnings about the use of SHA1:
$ brew install buildkite-agent
==> Installing buildkite-agent from buildkite/buildkite
==> Downloading .../buildkite-agent-darwin-386-2.1.13.tar.gz
Warning: SHA1 support is deprecated and will be removed in a future version.
Please switch this formula to SHA256.Well, we’ve updated everything to use SHA256. Installing using Homebrew should now be slightly less eventful 🎉
We also noticed that installing the new Buildkite Agent 3.0 beta using homebrew’s --devel flag wasn't quite working, so we’ve fixed that too! 🍻
Samuel
Buildkite Agent 2.1.9
We’ve just released Buildkite Agent v2.1.9 (Purple Rain) ⚛️
What’s new since v2.1.8? Two bug fixes and lots of Docker Compose improvements:
- 🌈 Build headers now work even if they're wrapped in ANSI color escape codes
- 🐛 Step commands are now run with bash’s
-o pipefailoption, preventing silent failures wherefailed_command | catwould end up with a passing step
Docker Compose 1.7.x support, including docker network removal during cleanup
Docker Compose builds now specify --pull, so a new base image will always be pulled if one exists
The "Running command" section of Docker Compose job output is now expanded by default
Docker Compose will now only build the specified service’s image, not all images. If you want to build all images, set the environment variable BUILDKITE_DOCKER_COMPOSE_BUILD_ALL=true
No more BUILDKITE_DOCKER_COMPOSE_LEAVE_VOLUMESundefined errors inbootstrap.sh
This release coincides with the beta of
Buildkite AWS Stack, a one-click auto-scaling build cluster in it's own AWS VPC capable of running any project with a docker-compose.yml. Please test it out and send us your questions and feedback.
The release has been published to the Buildkite package repositories. For instructions on upgrading your agent please see the Upgrading section in the corresponding section of our installation documentation.
For a full list of what's changed see the GitHub releases page 
Tim
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